Setting compiler options

[TheComamba]

Hi everyone!
Question:
In the gui, is it possible to specify command line options to be passed to the tex compiler?

Background:
I want to use lualatex to load a shared library. It knows the ffi (foreign function interface) module, but it can (at least on my ubuntu machine) only access the ffi.load function if I compile using lualatex --enable-write18 <file.tex>, I guess because it is secure by default. It would be nice to keep compiling using this wonderful gui.

Thanks a lot in advance!

[muzimuzhi]

I used to execute -shell-escape variants by adding a user command (Configure TeXstudio - "Build" tab - User commands) then add a new button linked to the automatically created menu "Tools - User - ". The disadvantage is that the button is hard-coded to an engine, for example pdflatex. Thus if I want to switch to another engine it seems I have to add another button.

Now I use magic comment (menu "LaTeX - Add magic comments..."; also called "advanced header" in the new manual) to specify the engine and options.

% !TeX program = lualatex -synctex=1 -interaction=nonstopmode -shell-escape %.tex | txs:///view

On macOS you may need #143 (comment). The disadvantage is that I have to repeat the default options -synctex=1 -interaction=nonstopmode.

TeXstudio supports subcommands argument modifiers, for example txs:///foobar --xyz will add option --xyz and txs:///foobar/{--xyz} will remove option --xyz. But it seems they're not very useful, see #3062.

[TheComamba]

Together with your hack from #3062 this is exactly what I had hoped for.
Thank you so much!

P.S.: The magic comment was not recognised on my machine - but that's a problem for another day.

[muzimuzhi]

@TheComamba As corrected in #3061 (comment) by @octaeder, the right syntax should be

% !TeX TXS-program:compile = txs:///lualatex/{%.tex} -shell-escape "%.tex"

% !TeX program = ... only supports a value in one of “latex”, “pdflatex”, “xelatex”, “lualatex” and “usern”, see manual https://texstudio-org.github.io/advanced.html#advanced-header-usage.